Mohamad, I, and Arul Arumugam P. “Masked Rhinolith: The Significance of Unilateral Symptom”. Malaysian Family Physician 8, no. 1 (March 31, 2012): 3. Accessed April 20, 2019. https://www.e-mfp.org/ojs3/index.php/MFP/article/view/114.